What is the molar mass of boron (B)?
A. 5 g/mol
B. 10.81 g
O C. 10.81 g/mol
D. 5 g

How many atoms of oxygen are contained in 160 grams of n2o3

Which part of a feedback mechanism is able to monitor the conditions outside of cells and usually uses nerve cells to relay this information to an intergrating center

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)